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EATON C440B1A100SF3 NEMA Electronic Overload Relay, 3 Poles, 20-100 A, 690V AC - NEMA Electronic Overload Relays
EATONNEMA Electronic Overload Relays

EATON C440B1A100SF3 NEMA Electronic Overload Relay, 3 Poles, 20-100 A, 690V AC

The EATON C440B1A100SF3 is a NEMA Size 3 electronic overload relay with three poles, rated for 20 A to 100 A and a maximum voltage of 690V AC. It features screw clamp terminals and is compatible with the Freedom…

SKU 3G-OTH-40766

Brand
EATON
Item
C440B1A100SF3 NEMA Electronic Overload Relay, 3 Poles, 20-100 A, 690V AC
Category
NEMA Electronic Overload Relays
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

EATON
Manufacturer Part Number
C440B1A100SF3
Phase
Three
Maximum Voltage Rating
690V AC
Thermal Units Required
Not Applicable to Electronic Type Overload Relays
Terminal Connection Type
Screw Clamp Terminals
Compatible Contactor Series
Freedom

Technical Documents

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EATON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The EATON C440B1A100SF3 is a NEMA Size 3 electronic overload relay with three poles, rated for 20 A to 100 A and a maximum voltage of 690V AC. It features screw clamp terminals and is compatible with the Freedom contactor series. This three-phase relay does not require thermal units, as it uses electronic protection.

Frequently Asked Questions

What is the EATON C440B1A100SF3 overload relay used for?

The EATON C440B1A100SF3 is an electronic overload relay used to protect three-phase motors from overloads and phase loss in industrial applications. It is compatible with the Freedom contactor series and is suitable for NEMA Size 3 installations requiring adjustable protection from 20 A to 100 A.

What are the specifications of the EATON C440B1A100SF3?

The EATON C440B1A100SF3 is a three-pole NEMA Size 3 electronic overload relay rated for 20 A to 100 A with a maximum voltage of 690V AC. It uses screw clamp terminals, requires no thermal units, and is designed for three-phase systems. It is compatible with the Freedom contactor series.

Where to buy the EATON C440B1A100SF3 worldwide?

You can source the EATON C440B1A100SF3 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine EATON components for industrial motor protection.

How to select the EATON C440B1A100SF3 for a motor?

To select the EATON C440B1A100SF3, ensure your motor's full-load current falls within its 20 A to 100 A range and that your system voltage does not exceed 690V AC. Verify compatibility with your Freedom series contactor and that your application is three-phase. No thermal units are needed for this electronic relay.

Used in

Common applications for EATON
Industrial control panels — Eaton M22 flush push buttons for momentary machine start/stop commands
Motor control centers — Eaton NEMA reversing starters with electronic overloads for conveyor belt direction control
HVAC systems — Eaton definite purpose starters with thermal overloads for compressor and fan motor protection
Process automation — Eaton SL7 tower lights with IP66 bases for visual status indication in wet environments
Machine tool signaling — Eaton 10250T LED pilot lights with push-to-test for operator panel status lamps
Access control — Eaton M22 keyed selector switches for equipment mode selection in secured areas

EATON Products

3G Electric supplies EATON nema electronic overload relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Three-pole electronic overload relay for NEMA Size 4 applications. Rated 28 A to 140 A at 690V AC, with screw clamp terminals. Compatible with C25 Definite Purpose contactors. No thermal units required; provides protection against overload, phase loss, and current imbalance in motor control circuits
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Three-pole electronic overload relay for NEMA Size 4 applications. Rated 28 A to 140 A at 690V AC, with screw clamp terminals. Compatible with C25 Definite Purpose contactors. No thermal units required; provides protection against overload, phase loss, and current imbalance in motor control circuits
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Three-phase electronic overload relay with screw clamp terminals, rated for 4 A to 20 A and 690V AC. Designed for NEMA Size 0 applications, compatible with C25 Definite Purpose contactors. Provides motor protection against overcurrent, phase loss, and imbalance without requiring thermal units
Three-pole electronic overload relay for NEMA sizes 4 through 9, rated 24 A to 140 A at 690V AC. Screw clamp terminals, compatible with Freedom contactor series. No thermal units required. Used for motor protection in industrial control panels and machinery
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Three-pole electronic overload relay for NEMA sizes 4 through 9, rated 24 A to 140 A at 690V AC. Screw clamp terminals, compatible with Freedom contactor series. No thermal units required. Used for motor protection in industrial control panels and machinery

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Three-phase NEMA electronic overload relay for motor protection against overcurrent and phase loss. Rated 20 A to 100 A, 690V AC, with screw clamp terminals. Compatible with Freedom contactor series. No thermal units required
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Three-pole electronic overload relay for three-phase motor protection. Rated for 690V AC with screw clamp terminals. Compatible with Freedom contactor series. Covers NEMA sizes 0/00/1/1-3/4/2/2-1/2/3/5/6/7/8/9. No thermal units required
Three-pole electronic overload relay for motor protection. Rated for 690V AC maximum with an adjustable current range of 4 A to 20 A. Features screw clamp terminals and is compatible with Freedom contactor series. No thermal units required
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